jewell



(No Model.)

0. H. JEWELL.

. Lubrioator.

No. 242,327. Patented May 31,1881.

IJ'NITE STATES PATENT ()FFIcE.

OMAR H. J EWELL, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO WILLIAMM. MATHISEN, OF SAME PLACE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 242,327, dated May 31,1881.

Application filed April 5, 1881. (N0 model.)

To all whom it may concern:

Be it known that I, OMAR H. JEWELL, of Chicago, in the county of Cookand State of Illinois, have invented a certain new and usefulImprovement in Lubrieators, of which the following is a specification.

The object I have in view is to produce a lubricator having its valveactuated intermittingly by a connection with a working part of themachine, which will be simpler and more direct in its action thanlubricators of the same class heretofore, and when used on a crankpin oreccentric will not allow any oil to work out through the top of the cup.

My invention consists in the peculiar devices and combinations ofdevices employed by me for this purpose, as fully hereinafter explained,and pointed outby the claims.

In the accompanying drawings, forming a part hereof, Figure 1 is anelevation of my lubricator mounted in position for oiling a crankpin;Fig. 2, a cross-section through the crank and the strap of theconnecting-rod, the crankpin and lubricator being in elevation; and Fig.3, a vertical section through the lubricator detached.

Like letters denote corresponding parts in all three figures.

The lubricator is constructed with a circular base, A, having ascrew-threaded stem, a,which turns into the upper side of aconnecting-rod or eccentric-strap, and supports the lnbricator in anupright position. A vertical oil-hole, 1), extends centrally through thebase A an d stem (1, and is countersunk at its upper end to formavalve-seat, b.

B is the circular cap of the lubricator, and C is a glass tube clampedbetween the cap and base. The glass tube C rests against packingrings 0,laid in shoulders or grooves on the base and cap, and such base and capare connected outside of the glass tube by rods D,"which havescrew-threaded lower ends for receiving nuts. The nuts on the rods D areturned tight, so as to draw the base and cap close against the ends ofthe glass tube and form close joints therewith.

A thin metal diaphragm, E, is clamped in the upper joint, and preventsthe splashing of the oil up into the cap.

This diaphragm di vides off from the body of the lubricator the chamberE in the cap, into which chamber very little, if any, oil is thrown bythe movement of the lubricator.

F is the valve-rod, which passes through a stuffing-box, d, in the topof the cap 13, down through the body of the lubricator, and into theoil-hole b. This rod has a conical valve, 0,

a short distance above its lower end, which rests on the valve-seat I),and prevents the flow of oil into the passage 11. The upper end of thevalverod, above the stuffing-box d, is screw-threaded, and passesthrough the inner end ofa horizontal arm, G, being provided withadjusting and clamping nuts f above and below said arm. At its outer endthe arm G is secured to the operating-rod H by means of a set-screw, g,so that it can be adjusted thereon. The operating-rod H is guided bymeans of two eyes, it h, which project from the cap and base. Below theeye h a spiral spring, I, is sleeved on the operating-rod, and is heldup against the eye it by a collar, 2', secured adj ustably to the rod Hby one or two set-screws, i. This spring forces the operating and thevalve rods downwardly and presses the valve 6 to its seat b.

The lubricator has a screw-plug, k, on its cap, which is removed when itis desired to fill the lubricator with oil. Through this screwplug isformed a small vent-opening, l, which opens into the chamber E at oneside thereof.

This vent-opening admits air, so that the oil can flow from thelubricator, and by reason of its connection with the chamber E at ornea-r the side thereof the oil cannot be forced through it. The openingin the diaphragm E around the valve-rod F has to be large enough so thatthe oil, when poured in the filling-opening, will run down into the bodyof the cup. WVhen the cup is used on the crank-pin of a fast-runningengine the oil, during every downward movement of the crank, is thrownviolently against the diaphragm E, and up through the central openingaround the valverod. The stuffing-box (I, however, prevents it frombeing forced out of the cup around the valve-rod. If this stuffing-boxwere not used,

the oil would all be forced out of the top of the cup in a short time.

K is the crank of a steam-engine; L, the crank-pin, M theconnecting-rod, and N the strap.

The stem a of the lubricator is secured into the upper portion of thestrap N, the opening that receives it being extended through to thecrank-pin. The lubricator is turned so as to bring its operating-rodover the head of the crank-pin. To such crank-pin head is secured abeveled lifting-plate, O, which, once in every revolution of the crank,lifts the operatingrod H, and through the connections described raisesthe valve from its seat, allowing a certain quantity of oil to flow intothe passage b. After the lift-plate passes the operating-rod it isforced down by the spring I, and the valve is closed, shutting off theflow of oil.

By means of the adjustment of the valverod in the arm G of theoperating-rod in such arm and of the collar i on the operating-rod, theparts can be set so that only the amount of oil necessary forthelubrication of the crankpin will be fed from the lubricator.

The working of the lower end of the "alve- 'rod in the passage bprevents the oil from clogging therein.

hen the engine is stopped the lubricator will not allow any oil to runout of it, since the lift-plate is arranged on the crank-pin so as tostrike the operating-rod when the crank is on the dead-center and ismoving upwardly, at which point the engineer will be careful notto stopthe engine.

This same lubricator is also well adapted for oiling eccentrics, thestem of the lubricator being screwed into the eccentric-strap, and theliftplate being secured to the side of the eccentric and engaging withthe operating-rod when the crank ot' the engine is on a dead-center.

The direct tripping device used by me for operating the valve enablesthe lubricator to be used for oiling the pins of double cranks, and alsofor oiling stationary bearings at the center as well as the ends of ashaft.

What I claim as my invention is- In a lubricator, the combination, withthe val ve-rod F, arm G, operating-rod H, and spring I, of the beveledlift-plate or projection 0, located on a revolving part of the machineand striking the lower end of the operatingrod, so as to lift the samedirectly, substantially as described and shown.

2. In a moving lubricator, the diaphragm E, dividing off the chamber Ein the cap from the body of the lubricator, in combination with anair-vent entering said chamber, substantially as described and shown.

3. In a moving crank-pin lubricator, the combination, with the cup, ofthe diaphragm E, forming the chamber E in the top of the cup, theworking valve-rod F, passing through such diaplnragm and the top of thecup, the stuffingbox (I, and vent'openiug l, substantially as describedand shown.

This specification signed and witnessed this 31st day of March, 1881.

OMAR H. JEWELL.

Witnesses; V

F. W. KASEHAGEN, OLIVER W. MARBLE.

